#13007: ghc-options -threaded present but -N option unrecognised on ARM -------------------------------------+------------------------------------- Reporter: tmpz | Owner: Type: bug | Status: closed Priority: normal | Milestone: Component: Runtime System | Version: 8.0.1 Resolution: duplicate | Keywords: arm, | raspberrypi, raspbian, rts, | threaded Operating System: Linux | Architecture: arm Type of failure: Incorrect result | Test Case: at runtime | http://allocinit.io/haskell | /haskell-on-raspberry-pi-3/ Blocked By: | Blocking: Related Tickets: 12981 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by rwbarton): * status: new => closed * resolution: => duplicate * related: => 12981 Comment: The threaded runtime is a different matter from supporting executing Haskell on multiple OS threads (SMP, or the -N option). Confusing I know! The build system was accidentally disabling SMP for all ARM builds, even when targeting a version of ARM that supports the atomic operations needed to support multiprocessing. Recently reported and fixed in #12981. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13007#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler